China No Sf6 Gas Switchgear Rmu Fast Respond, Find details about China Ring Main Unit, Fast-Breaking from No Sf6 Gas Switchgear Rmu Fast Respond
Rated voltage | 12kV |
Rated current | 630A |
Rated frequency | 50Hz |
Rated short-duration (1 min) power frequency withstand voltage | 42/48kV |
Rated short-circuit breaking current | 20kA |
Rated short-duration withstand current (4s) | 20kA |
Rated lightning impluse withstand voltage(to earth/break) | 75/85kV |
Rated short-circuit making current (peak value) | 50/63kA |
Rated peak withstand current | 50kA |
Rated load breaking current | 630A |
Mechanical service life of vacuum circuit breaker | 10000Times |
Rated close circle breaking current | 630A |
5% rated load open current | 31.5A |
Rated transfer current | 1700A |
Description | Unit | Using Environment Value | |
Surrounding Air | Max Temperature | ºC | +50 |
Min Temperature | -50 | ||
Max Daily Temperature Difference | K | 30 | |
Altitude | M | ≤2, 000 | |
Solar Radiation Intensity | W/cm2 | 0.1 | |
Pullution Class | IV | ||
Icing-Thickness | mm | 10 | |
Humidity | Average Value of Daily Relative Humidity | % | ≤100 |
Average Value of Monthly Relative Humidity | ≤95 | ||
Earthquake Torelance Ability | Degree | ≤8 |